It's good to take portions of the book and broaden the understanding by explaining the concept/material in other ways. If she's a new teacher, I believe that's why she isn't giving any other real examples since she might be new to the material.
Then she must be a **** teacher. You can understand all about a subject and yet still not know how to teach it to someone else.
How boring and unimaginative. And definitely not very motivating for the students. I hate lectures where you just sit and listen and there is no interaction. To learn something you have to discuss it in dialogue, ask questions, give your opinions and ideas, sometimes a bit of brainstorming or something but just to sit there and listen to "storytime" has no learning effect whatsoever. I teach my students with live examples, demonstrations, ask them questions, ask their opinions get them to explain or help the other students if they can. I use the stronger students to help the weaker ones. I get the students to give a talk about certain topics etc. They have a lot of speaking practice with each other in the class. So just reading a book is definitely a bad method. Why don't you just buy the book and read it yourself at home in comfort?
Generally good to introduce theory with reference to a book then illustrate with anonimised real life examples. Uni lecturer class 101!!!
just do the courses and get your certificate. It doesn't matter if they're any good, not in the long view of things.
if you don't mind my asking, why is this your third college?